#397B8D#397B8D

#397B8D is a mid, moderate cyan. Relative luminance 0.170; OKLCH L 54.7% C 0.072 H 218.2°. Best body text is #FFFFFF at 4.78:1 contrast (WCAG AA passes).

Color values

HEX	#397B8D
RGB	rgb(57, 123, 141)
HSL	hsl(193, 42%, 39%)
HSV	hsv(193, 60%, 55%)
CMYK	cmyk(59.6%, 12.8%, 0%, 44.7%)
CIE-LAB	lab(48.21, -15.39, -16.11)
CIE-LCH	lch(48.21, 22.27, 226.31°)
OKLab	oklab(54.74% -0.0567 -0.0447)
OKLCH	oklch(54.74% 0.072 218.2)
XYZ	xyz(13.5761, 16.9575, 27.7518)
Luminance	0.1696 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#397B8D #8D4B39

analogous

#398D75 #397B8D #39518D

triadic

#397B8D #8D397B #7B8D39

tetradic

#397B8D #75398D #8D4B39 #518D39

square

#397B8D #75398D #8D4B39 #518D39

split-complementary

#397B8D #8D3951 #8D7539

monochromatic

#162F36 #275561 #397B8D #4CA0B7 #78B7C8

Accessibility & contrast

On white

4.78

#397B8D on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.39

#397B8D on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #397B8D

4.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##397B8D	#FFFFFF	#000000	##FFFFFF
##397B8D	1.00	4.78	4.39	4.78
#FFFFFF	4.78	1.00	21.00	1.00
#000000	4.39	21.00	1.00	21.00
##FFFFFF	4.78	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#6F788E

Deuteranopia (green-blind)

#636E8D

Tritanopia (blue-blind)

#008181

Achromatopsia (no color)

#727272

Design tokens & code

CSS

--color: #397b8d;
/* rgb */ color: rgb(57, 123, 141);
/* oklch */ color: oklch(54.7% 0.072 218.2);

Tailwind

colors: {
  custom: {
    50: '#78a1ae',
    500: '#397b8d',
    950: '#000000',
  },
}

SCSS

$custom: #397b8d;
$custom-light: #78a1ae;
$custom-dark: #000000;

JSON

{
  "hex": "#397b8d",
  "rgb": {
    "r": 57,
    "g": 123,
    "b": 141
  },
  "hsl": {
    "h": 192.857,
    "s": 42.424,
    "l": 38.824
  },
  "oklch": {
    "l": 0.5474,
    "c": 0.07222,
    "h": 218.2
  },
  "luminance": 0.16959
}

Semantic roles & 50–950 ramp

primary

#397B8D

secondary

#B27E70

accent

#7056D2

background

#F7F9FA

surface

#EEF2F4

border

#C9CCCE

text

#090F10

muted

#7B7E7F

Preview Lab

Preview with #397B8D

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →